Abstract
The influence of wavelet compression on calculated dose distribution is investigated as regards to CT-based radiotherapy planning. Chest CT images for radiotherapy were compressed and a treatment plan was constructed to generate a dose distribution within the CT image. The compressed images were analyzed using dose volume histograms (DVH) and compared to DVHs generated for uncompressed images. The lossy wavelet compression irreversibly changes pixel values in the CT, giving rise to errors in the dose calculations performed by treatment planning systems that account for tissue inhomogeneities in the image.
Original language | English (US) |
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Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
Publisher | Society of Photo-Optical Instrumentation Engineers |
Pages | 1147-1157 |
Number of pages | 11 |
Volume | 3661 |
Edition | II |
State | Published - 1999 |
Event | Proceedings of the 1999 Medical Imaging - Image Processing - San Diego, CA, USA Duration: Feb 22 1999 → Feb 25 1999 |
Other
Other | Proceedings of the 1999 Medical Imaging - Image Processing |
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City | San Diego, CA, USA |
Period | 2/22/99 → 2/25/99 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Condensed Matter Physics